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GETSOCKNAME(2) Linux Programmer's Manual GETSOCKNAME(2)
getsockname - get socket name
int getsockname(int s, struct sockaddr *name, socklen_t *namelen);
Getsockname returns the current name for the specified socket. The namelen parameter
should be initialized to indicate the amount of space pointed to by name. On return it
contains the actual size of the name returned (in bytes).
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
EBADF The argument s is not a valid descriptor.
The argument s is a file, not a socket.
Insufficient resources were available in the system to perform the operation.
EFAULT The name parameter points to memory not in a valid part of the process address
SVr4, 4.4BSD (the getsockname function call appeared in 4.2BSD). SVr4 documents addi-
tional ENOMEM and ENOSR error codes.
The third argument of getsockname is in reality an `int *' (and this is what BSD 4.* and
libc4 and libc5 have). Some POSIX confusion resulted in the present socklen_t. The draft
standard has not been adopted yet, but glibc2 already follows it and also has socklen_t.
See also accept(2).
BSD Man Page 1993-07-24 GETSOCKNAME(2)
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